As I have reported earlier, I decided to run webmin on my new server. I have also reported about my UPS which keeps my server running whenever Vattenf*ll fails to supply my flat with electricity — at least for about half an hour before the server is controllably shut down. Now with new batteries in… Continue reading Webmin and apcupsd
Category: Everything
Knight Rider is back
Now I am completely sold to AVR microcontrollers. ATMEL’s free software seamlessly interfaces to the also free AVR-GCC C compiler and it is really easy to get started with the AVR microcontrollers – both in assembler and in C. Today I first rewrote yesterday’s assembler code into C in order to get the same effect.… Continue reading Knight Rider is back
Bugs with six and more legs
Today was the first really sunny day this spring in Uppsala. Reaching 25°C I spent a large part of the day on my balcony where I was visited by a special guest: This rose chafer was elected the insect of the year 2000 in Germany where it is rare and protected. On my balcony here… Continue reading Bugs with six and more legs
New batteries
Today I finally managed to get the four new batteries for my UPS unit. Now everything is green again:
My server – no end yet
I thought this was it – well it wasn’t… This weekend I put everything together again: the server and all four harddisks (one system hdd and three data hdds in RAID 5). I put the server in the closet where it usually resides and powered it up. Then I tried to connect to it, but… Continue reading My server – no end yet
A visit at the Ångström laboratory?
Yesterday I just wanted to fetch a manual at my office, when I saw a rare visitor at the Ångström laboratory in Uppsala. At first it looked like a normal sports car parked outside the side entrance – but then: why would a sports car be parked there? It took me a moment to notice… Continue reading A visit at the Ångström laboratory?
A new server
My old server Last weekend my personal server at home broke down after more than four years of continuous operation. This server used to occupy the big tower case in which I bought my 386DX-33 in 1992. I still remember when I finally fetched that old computer from Karstadt in Kiel in the trunk of… Continue reading A new server
Model construction
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Time to repot
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Lights for Energihuset
Today I designed a solar-cell powered LED lighting for a model of the planned energy education centre Energihuset in Uppsala. The model was built by Nyréns Arkitektkontor and equipped with 108 white light-emitting diodes, series connected in groups of three for a common supply voltage of 12 V. The model will be presented at the Swedish… Continue reading Lights for Energihuset